Windmill



M. C. NIXON.

Feb. 6, 1923.

WINDMILL.

ORIGINAL FILED 050.17.1917.

WITNESSES Fatented ch. 5,

earn r MOSES C. 3513631, OF CHICAGO, ILLINOIS.

wrnnnrrn Application filed. December 17, 1917, Serial No. 207,485. Renewed May 15, 1922. Serial no 530 A To all whom it may concern: 7

Be it knownthat I, Moses C. Nixon, of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Windmills, of which the following is a specification.

This invention relates to windmills of the general type shown and described in my former Patent No. 1,246,008, issued Novemher 6, 1917 and as the power transmitting mechanism and certain other features are not a part of the present invention'they are not shown in this application; the object being to provide, a pull-out mechanism for operating the vane; and consists, preferably,

1 in the construction hereinafter described.

In the drawings, Figure 1 is a side elevation of the supporting-frame and incasement of a windmill head, with present invention attached, and Fig. 2 is a planview of Fig. 1 with covering of incasement removed.

Referring to the drawings, similar numerals of reference indicate corresponding parts of the difi'erent views, in which 1 is the supporting-frame, which in this case also forms the'body of an incasement for power transmitting mechanism and a reservoir for lubricant, explained in my former patent, and 2 is a coverin tor-the same. This covering, which is pre erably made of galvanized steel, is formed with an oifset bly mounted therel'nare sheaves 8 and '9, the 1 former ot-said sheavesbeing so positioned 2 so as to rest upon the body of incasement is secured thereto,,and extends downwardly over the same, so as to make the incasement more Storm-proof; Said supporting-frame is mounted upontubular mast 3 in osition to swin about a vertical axis.

l t being desirab e that the incasement be as nearly dust and stormroof as possible, and that the pull-out mec anism be operative through the tubular mast, such a mechanism has been devised, which enters the mast through hub 4 of the supporting-frame and below the incasement. In the construction shown, housing 5 is secured to lugs 8 that extendirom hub 4,.as by bolts 7, and revoluas to extend throu h opening 10in said hub. Said housing may e formed so as to protect said opening and sheaves from the storm.

- The vane-hinge 11 is pivotally mounted upon brackets 12 and 13, and the vanestem 14. is rigidly secured to said hinge, is broken off in the drawings, and the vane, which may be of the usual form, is not shown.

and when released the torsion spring, or

Around the vane-hinge pivot-pin 15 is placed torsion spring 16, which has a hook 17 at its upper end adapted to catch upon rib 18 of the-vvane-hinge. The lower end of this spring is turned downward and adapted to enter hole 19 in tension piece 20.

The tension piece is placed upon the vanehinge pin andis provided with a rim 21, upon which the spring rests, and its hub extends upwardly into the spring. At the upper end of this spring a rimmed collar 22 is provided, which, extends downward into the spring, the rim 23 being intended to prevent the collar from working too iar down. The object of this collar and the upwardly extending hub of the tension piece is to keep the spring centrally located as to the hinge-pin. From the side of the incasement extends a bracket 24, to which is attached rod 25. Said rod passes through a hole in the arm of the tension piece and by the use of the nut 26, the tension -on the torsion spring may be adjusted to meet requirements. From the lower part of the vane-hinge is an extension 27, to whichis secured chain 28, or other suitable connection, which passes partly around. said sheaves, through opening 10 into and'downward through the tubular mast, and is open ated from below. In operation of the pullout mechanism, the chain is drawn downward, thereby causing the vane to pivot and permitting the mill to become inoperative,

other suitable mechanism, carries it back into normal position.

While this pull-out mechanism has been shown in connection with a windmill having a storm-proof incasement and the preferred 55 construction has been shown and described, I do not wish to be limited to either that type of windmill, asit is applicable to other types, or limited to the details shown as changes may readily be made without deme parting from the spirit of my invention.

What I-- claim is: y 4

1. In a windmill, the combination with a supporting framep'rovided with a hub, a tubular mast entering said hub upon which said'frame is mounted to swing about a vertical axis, an incasement, a vane pivrotally mounted upon said frame, an opening in the side of the hub of said frame and extending into the tubular mast, a housing extending from said hub, sheaves mounted in said housing, and means guided by said sheaves and operative through said opening and mast without any connection through the incasement whereby the vane may be actuated,

2. In'a windmill, the combination with a supporting frame, of a tubular mast upon which said frame is mounted to swing about a vertical axis, an incasement, a vane pivotally mounted upon said frame, a housing supported upon said frame exterior to the incasement, means for swinging said vane at will which includes a connecting device which passes through the tubular mast without entering the incasement, and means c'ontained within said housing for guiding said connection.

3.. In a windmill, the combination with a supporting frame, a tubular mast uponwhich said frame is mounted to swing about a vert cal axis, an incasement, a vane pivotally mounted upon said frame, a bracket supported upon said frame exterior to the incasement, means for actuating said vane which includes a connecting device which passes through the tubular mast without entering the incasement, and means carried by said bracket for guiding said connecting means:

,4. Ina windmill, the combination with a supporting frame, a tubular mast upon which said frame is mounted to swing about a vertical axis, an incasement, a vane pivotally mounted upon said frame, and means for actuating the vane which includes a connecting device which passes through the tubular mast without entering the incasementv MOSES C. NIXON. Witnesses:

ALL N SHELDON, PAUL Wncnmq 

